/Engine/Source/Runtime/LiveLinkInterface/Public/ILiveLinkClient.h
Get the role of a subject from a specific source
[TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [ULiveLinkRole](API\Runtime\LiveLinkInterface\ULiveLinkRole) > GetSubjectRole_AnyThread ( const [FLiveLinkSubjectKey](API\Runtime\LiveLinkInterface\FLiveLinkSubjectKey) & SubjectKey ) const